Westphalia

Westphalia was a German state which existed as a duchy from 1180 to 1803, as a kingdom from 1807 to 1813, and as a province of Prussia from 1813 to 1946. With its capital at Cologne (later at Muenster), Westphalia was a predominantly-Catholic state of Germany, and it would remain a German province until 1946, when the end of World War II led to the political transformation of Germany. Westphalia became the state of North Rhine-Westphalia, now a German state.